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Ber [7]
3 years ago
7

Simplify: -3x2 + 5x -22 + 4x2 - 9x

Mathematics
1 answer:
DiKsa [7]3 years ago
5 0

Answer:

B

Step-by-step explanation:

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Joey collects baseball cards. He already has 245 and for his birthday, each of his 12 friends bought him 25 more. How many baseb
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Answer:545 baseball cards

Step-by-step explanation:hope this helps!

6 0
3 years ago
Geometry 10 Unit 7 Circles Test Question 16
Sergio039 [100]
X is 15



8x - 10 + 6x + 10x + 10 = 360 \\ 8x + 6x + 10x = 10 - 10 + 360 \\ 24x = 360
x = \frac{360}{24 } = 15

good luck
4 0
4 years ago
I need help my people :-)
lara [203]

Answer:

13.75$

Step-by-step explanation:

First, take 10% of 12.50$. That will give you 1.25$.

Next, add that to 12.50$ to get your new hourly pay.

4 0
3 years ago
What is the solution to the system of equations?
elixir [45]

Answer:

No solution

Step-by-step explanation:

-3x-4y-3z=-7\\2x-6y+2z=3\\5x-2y+5z=9\\\\

Lets consider the equation 2.

Here we multiply the LHS and RHS with (-1).

-3x-4y-3z=-7\\-(2x-6y+2z)=-3\\5x-2y+5z=9\\\\

Hence,

-3x-4y-3z=-7\\-2x+6y-2z=-3\\5x-2y+5z=9\\\\

When we add the equations we get,

0x+0y+0z=-10+9\\Hence,\\0=-1

As 0 doesn't equal to -1, answer is d) No solution

6 0
3 years ago
Lucy is going to rent a truck for one day. There are two companies she can choose from, and they have the following prices
hram777 [196]

Answer: Any amount of milage more than 30

Step-by-step explanation: You can write an equation to compare the relationship between the costs that looks like:

102<75+0.9m

27=0.9m

m=30

4 0
2 years ago
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